package com.clip.dao;
// default package

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.springframework.stereotype.Repository;

import com.clip.entity.User;

@Repository
public class UserDAO extends BasicDao  {
    private static final Log log = LogFactory.getLog(UserDAO.class);
	//property constants
	public static final String EMAIL = "email";
	public static final String NAME = "name";
	public static final String PWD = "pwd";
	public static final String BIRTH = "birth";
	public static final String QQ = "qq";
	public static final String MSN = "msn";
	public static final String MOBILE = "mobile";



    
    public void save(User transientInstance) {
        log.debug("saving User instance");
        try {
            getSession().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }
    
	public void delete(User persistentInstance) {
        log.debug("deleting User instance");
        try {
            getSession().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }
    
    public User findById( java.lang.Integer id) {
        log.debug("getting User instance with id: " + id);
        try {
            User instance = (User) getSession().get(User.class, id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    
    
    public List findByExample(User instance) {
        log.debug("finding User instance by example");
        try {
            List results = getSession()
                    .createCriteria("User")
                    .add(Example.create(instance))
            .list();
            log.debug("find by example successful, result size: " + results.size());
            return results;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    }    
    
    public List findByProperty(String propertyName, Object value) {
      log.debug("finding User instance with property: " + propertyName
            + ", value: " + value);
      try {
         String queryString = "from User as model where model." 
         						+ propertyName + "= ?";
         Query queryObject = getSession().createQuery(queryString);
		 queryObject.setParameter(0, value);
		 return queryObject.list();
      } catch (RuntimeException re) {
         log.error("find by property name failed", re);
         throw re;
      }
	}

	public List findByEmail(Object email
	) {
		return findByProperty(EMAIL, email
		);
	}
	
	public List findByName(Object name
	) {
		return findByProperty(NAME, name
		);
	}
	
	public List findByPwd(Object pwd
	) {
		return findByProperty(PWD, pwd
		);
	}
	
	public List findByBirth(Object birth
	) {
		return findByProperty(BIRTH, birth
		);
	}
	
	public List findByQq(Object qq
	) {
		return findByProperty(QQ, qq
		);
	}
	
	public List findByMsn(Object msn
	) {
		return findByProperty(MSN, msn
		);
	}
	
	public List findByMobile(Object mobile
	) {
		return findByProperty(MOBILE, mobile
		);
	}
	

	public List findAll() {
		log.debug("finding all User instances");
		try {
			String queryString = "from User";
	         Query queryObject = getSession().createQuery(queryString);
			 return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}
	
    public User merge(User detachedInstance) {
        log.debug("merging User instance");
        try {
            User result = (User) getSession()
                    .merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

    public void attachDirty(User instance) {
        log.debug("attaching dirty User instance");
        try {
            getSession().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
    
    public void attachClean(User instance) {
        log.debug("attaching clean User instance");
        try {
            getSession().lock(instance, LockMode.NONE);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
    public List findByQuery(String query) {
		return findByQuery(query,null);
	}
    
    public List findByQuery(String query,Object... args) {
    	Query queryobj=getSession().createQuery(query);
    	if(args!=null&&args.length>0){
    		for (int i = 0; i < args.length; i++) {
				queryobj.setParameter(i, args[i]);
			}
    	}
		return queryobj.list();
	}

    
    public long countByQuery(String query){
    	return (Long) getSession().createQuery(query).uniqueResult();
    }
    
    public List pagingByQuery(String query,Integer currentpage,Integer pagesize){
    	Query queryObj=getSession().createQuery(query);
    	queryObj.setMaxResults(pagesize);
    	queryObj.setFirstResult(currentpage*pagesize);
		return queryObj.list();
    }
    
}